Released lua-benchmarker

I've released lua-benchmarker that is a benchmarker for lua code. This benchmarker is for taking microbenchmark.

github.com

This library is available on luarocks. You can install this by luarocks install benchmarker.

luarocks.org

For example, write a benchmark code like following:

local benchmarker = require 'benchmarker'

benchmarker.new({
    ["insert append"] = function ()
        local arr = {}
        for i=1,1000 do
            table.insert(arr, i)
        end
    end,
    ["index append"] = function ()
        local arr = {}
        for i=1,1000 do
            arr[i] = i
        end
    end,
}):warmup(10):run_within_time(1):timethese():cmpthese()

then execute this code, the result is the following:

starting warming up: 10

Score:

index append:  1 wallclock secs ( 1.05 usr +  0.00 sys =  1.05 CPU) @ 51124.51/s (n=53695)
insert append:  1 wallclock secs ( 1.06 usr +  0.00 sys =  1.06 CPU) @ 9185.70/s (n=9760)

Comparison chart:

                    Rate  index append  insert append
   index append  51125/s            --           457%
  insert append   9186/s          -82%             --

Yes, this output format is taken from Benchmark.pm. This benchmarker is inspired by Benchmark.pm and tokuhirom/nanobench.

NOTE: This utility supports multi-platform (i.e. Windows is also supported!!).

Enjoy.